Tire boot



April 10, 1928. 1,666,002

M. P. COLE TIRE BOOT Filed Sept. 20. 1927 I v I INVENTOR. M1. ole,

Y M I I ATTOR EY Patented Apr; 10, .1928."

UNITED STATES v 1,666,002 PATENT OFFICE.

MARTIN P. COLE, OF GOODLAND, KANSAS.

TIRE BOOT.

Application filed September 20, 1927. Serial No. 220,753.

This invention relates to a patch or a boot for the outer casings of pneumatic tires, and is designed primarily for use in connection with balloon and high pressure tires. but it 5 is to be understood that a patch or boot in accordance with this invention may be employed for any purpose for which it is found applicable, and the invention'has for its object to provide, in a manner as hereinafter set forth, anon-slip. strong, durable,

that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended. I

In the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure 1 is a top plan view of a patch or boot, in accordance with this invention, of 0 the rectangular or oblong type. p

F igurei2' is a section on line 2--2 Figure 1. f

, Figure 3 is a toppla-n view of a modified form of patch or boot, in accordance with 5 this invention, and for use in connection with the side wall oft-he casing of a tire.

Figure 4 is a section on line Figure 3.

Figure!) is a top' plan view of another modified form of a patch or boot and of the circular type. j I

Figure 6 is a section onlline 66 Figure 5.

Figure 7 is a fragmentary view in cross section of the outer casing of a tire showing the adaptation'therewithof a patch or boot] 5. in accordance withthis invention.

Each of the forms of patches or boots shown is of like construction, with this ex-- ception' that the oontourof each in plan is different and as shown in Figures 1 and2, v

) the patch or boot is oblong, in Figures 3 and 4 semi-oval, and in Figures 5, and 6 circular. The patch or boot in cross section is set up to conform to the shape of the tire.

'Each patch or, boot shown comprises a i body portion formed of a plurality of'rubberized cordfabrics taken from an old tire flexible covering for the bod casing. which has been vulcanized, and the stretch taken out. As illustrated, by wayi of exai'nple. in connection with each patch or boot,- the body portion is'formed oftwo plies of rubberized cord fabric.

Each patch or boot further comprises a flexible base cut from a discarded inner tube and which, prevents the chafing or pinching of the innertube of a tire when the pat-ch or boot is secured in position. The body portion of the patch or boot is secured upon the outer face of the base, is of less size than the size of the latter and has its edge or edges spaced inwardly of the edge or edges of the base.

Each patch or boot further comprises a portion and .which consists of a plurality o stepped plies, depndingupon the strength desired, which are cut or taken from a discarded inner tube.

The inner ply of'the covering completely encloses the'body portion of the patch.

The base, plies of the body portion and plies of the-covering are buffed and treated with a suitable rubber solution and are vulcanized together solidly, and will not slip or move in the tire.

The contour of the plies of the body I portion and the contour of the plies of the covering for the body portion conform in shape to that of the base of the patch or shoe.

Referring to Figures 1 and 2 of the drawings 1 indicates a base, which is of oblong contour, 2, 3 the plies of the body portion, 4, 5, 6 the plies of the covering for the body portion and 7 cushion gum covering all layers on the stepped down face of a patch 1 or boot for the purpose of insuring'adhesion and self-vulcanization when the patch or .boot is mounted in position.

Referring to Figures 3 and 4 of the drawings 1" indlcates the base which is of semioval contour, 2", 3";the plies of the body portion, 4:, 5' plies'of the coverin and 6 the cushion gum or adhesive material.

Referring-to Figures 5 and 6 the base of the patch or boot is of circular contour and indicated at 1", the plies of the body portionat 2", 3.',-and the plies of the covering at 4", 5" and 6". The cushion cement or gum is indicated at 7".

In Figure 7 of the drawings a tire is illustrated at 8, and which is provided with a crack 9 andsecured to the inner face of the tire or outer casing 8-is a patch or boot 10 for closing the crack 9.

The patch or boot is self vulcanizing and made to fit allsizes of balloon and high pressure tires. When the patch or boot is mounted in position'it will not chafe the" casing or inner tube or pinch the latter; The form of patch shown in Figure 3 is" to be employed with a side wall of the outer casing of the tire. The patch or tire can beconstructed so that it can be used with be understood that changes in the details,

of construction can be had which will fall within the scope of the invention as claimed.

\Vhat I claim is: 1. A self-vulcanizing patch or boot for the outer casings of pneumatic tires comprising a composite body portion ha ring the elements thereof Vulcanized together and consisting of a flexible base, a body portion formed of a plurality of plies of nonstretched material and of a material ditl'erent from that of the base, a flexible covering formed'of a plurality of plies of material and of a material different from that of said bodyportion, and said covering and body portion arranged in stepped relation, and a coating extending completely through out the outer face of said covering and possessing a characteristicto provide for the self-vulcanizing of said body to the inner face of the outer casing of a tire. ,7

2. A self-vulcanizing patch or boot for the outer easings of pneumatic tires comprising a composite body having the elements thereof vulcanized together and consisting of a tlexible base taken from an inner tube, a body portion formed of a plurality of plies of' non-stretched material and taken from the outer casing of a tire, and a flexible covering formed of a plurality of plies taken from an inner tube, said covering and body portion arranged in stepped relation, and a coating extending entirely throughout the outer face of said covering and possessing a characteristic to provide for the self-vulcanizing of said body with the inner face of the outer casing of a tire.

In testimony whereof, I atlix my signature hereto.

MARTIN P. COLE. 

